The case of a 56 year old male ironworker who died and a male coworker who was seriously injured when they fell 47 feet from a steel truss to a concrete floor below was examined. The two men were employed as ironworkers by a small industrial contracting firm. The firm had a formal safety program, and employees in violation of the safety rules were subject to dismissal. The victim, an ironworker with 38 years of experience, and his two coworkers were replacing steel roof support material in a building that was 59 years old. The men were working from a 1 foot wide steel truss as they burned out smaller cross braces and replaced these with new wind trusses, measuring 19 feet by 11 inches. The truss they were standing on was steel, and the roofing material above them had been removed prior to the start of this work. At the time of the incident the workers were wearing safety belts and lanyards which were not secured to the guy lines. At a pause in the work, one coworker turned way momentarily; when he looked back both of his coworkers were gone. The men had fallen from the truss to a dirt covered concrete floor. One died from multiple traumatic injuries, and the other was hospitalized. It was recommended that workers should be constantly reminded to use their safety equipment.